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ANTDESIGN / LANTERN GLOW FOB
Antdesign Titanium Lantern Glow Fob

Antdesign Titanium Lantern Glow Fob

A small titanium lantern for the things you reach for in the dark.
Glowing for the next 25 years.

Your bag in a dark hotel room, car keys at night, the zipper you always miss. Hang the Lantern on it and it marks itself — a sealed Swiss-made tritium vial inside a 23 mm Grade 5 titanium lantern, glowing on its own every night for decades. Nothing to charge, nothing to switch on. And it's the first Glow Fob built with shock absorption, so a drop doesn't have to mean a dead vial.

  • Shock-absorbing design protects the tritium vial if it drops
  • Glows 24/7 for up to 25 years — no battery, no charging, no switch
From$45.90

Sealed Swiss-made vial, safe for everyday carry. Vials are included based on the color you select.

30-Day ReturnsSealed & SafeFactory Direct Price
Up to 25yr
Self-powered glow
Ti Gr.5
Titanium + borosilicate glass
0
Batteries, ever
23 mm
Tall · 14.2 mm across
60s
Vial swap, no tools

Find what you need.
Leave the lights off.

Keys vanish into the dark. A flashlight is no help until you find it. A tent zipper disappears into the fabric after lights out. The Lantern puts a soft, continuous point of light on the exact thing you're reaching for — and at 23 mm it hangs anywhere a zipper pull would.

Lantern Glow Fob glowing green on a set of keys
Find your keys. Keep the lights off.
Set them down anywhere — the small green lantern is the first thing you see when the room goes dark.
Lantern Glow Fob hanging from a flashlight in the dark
Find your light before you can turn it on.
Hang it from the flashlight lanyard: when the power cuts out, the beam is one reach away.
Lantern Glow Fob on a tent zipper at night, glowing green
Find the tent door at 3 a.m.
Clip it to the entrance zipper: the pull is right there, no phone light sweeping across sleeping people.
Put one wherever you keep losing things.

Keys, pack, tent, luggage, camera bag, dog leash — if you reach for it in the dark, it can carry a Lantern. No charging before bed or a trip; the glow is simply there. It marks the item; it is not a flashlight.

Lantern Glow Fob - Green

Eight colors.
One is yours.

Tap a color to preview it. Green is the brightest and the one most owners start with. Vials are included based on your selection.

Preview: Green
Green
Yellow
White
Orange
Ice Blue
Pink
Red
Purple
Relative brightness
100%
Pick my glow color — from $45.90
30-Day ReturnsSealed & SafeFactory Direct Price

Real product photos, no filters. Choose add-ons in the product options above.

How the colors compare: Green reads brightest to the human eye and is the one most owners start with, with Yellow close behind — the best picks for a true low-light locator. White, Orange and Ice Blue sit in the middle: still easy to spot, more balanced in tone. Pink, Red and Purple are the softest — pick these for character rather than reach. All eight share the same self-powered vial, and you can always swap the vial later.

Max visibility
Best for finding keys, bag zippers, and gear in near-total darkness.
GreenYellow
Balanced glow
Visible at a glance, with a less intense look. Great for daily carry.
WhiteOrangeIce Blue
Subtle accent
A gentle ambient glow — more about character than locating things.
PinkRedPurple
Shock-absorbing vial assembly of the Lantern Glow Fob
01 — Protection
The first Glow Fob with shock absorption.
Most tritium fobs are a vial in a tube; a hard drop and the vial is gone. The Lantern was the first to put the vial in an engineered shock-absorbing assembly that dissipates impact energy before it reaches the glass. A fall may crack the outer glass — that's the part designed to take the hit — while the tritium vial inside stays intact and keeps glowing.
Grade 5 titanium Lantern Glow Fob body
02 — Material & design
Grade 5 titanium, shaped like a lantern.
Real Grade 5 titanium (Ti-6Al-4V) — the alloy of jet engines and surgical implants, not coated alloy. It won't rust, won't bend and won't age on your keyring. The lantern-inspired form adds a touch of classic charm to a modern EDC kit: 23 mm tall, 14.2 mm across, light enough to forget on a zipper.
Borosilicate glass window of the Lantern Glow Fob
03 — Optics
Why glass instead of plastic.
Plastic yellows, scratches and hazes within weeks. Borosilicate glass — the same material as lab beakers — keeps optical-grade clarity and resists scratches, so the glow looks as good on year five as on day one. Glass is also the part designed to take a hit before the vial does.
Pick my glow color — from $45.90
30-Day ReturnsSealed & SafeFactory Direct Price

Why it never needs charging

Glow paint has to be charged under a light and fades within hours — usually before you need it. Tritium makes its own light: inside each sealed glass vial it excites a phosphor coating around the clock, whether the fob lives on your keys, in a pack pocket or at the bottom of a camping bin for months. Nothing to remember, nothing to switch on.

B-DECAY ELECTRONS TRITIUM GAS (H-3) PHOSPHOR COATING ON INNER WALL

Glows continuously for years

Hydrogen-3 undergoes natural beta decay inside a sealed glass vial, releasing low-energy electrons nonstop — day and night, whether you look at it or not.

Nothing to charge or maintain

Those electrons hit the phosphor coating on the inner glass wall and turn straight into visible light. No battery, no sunlight, no switch.

Sealed safely inside titanium

The phosphor keeps emitting a steady glow for up to 25 years, all self-contained. Swap in a fresh vial whenever you want it back at full strength.

When sealed, tritium vials are safe to handle. Their beta radiation is too weak to penetrate the glass vial and is easily blocked by paper. The same light sources are used in watches, exit signs and aviation instruments.

Why this isn't a $5 glow stick

Tritium vs photoluminescent glow paint — the difference is 25 years.

Antdesign Lantern
Glow Paint
Glow duration
Up to 25 years
2-4 hours after charging
Self-powered
Yes
Needs light
Body material
Grade 5 Ti
Plastic
Lens
Borosilicate
N/A
Light charging
Never
Every day
Drop protection
Shock-absorbing
None
Color swap
About a minute, no tools
No

New color. Same titanium lantern.

Start with one color today. Switch to another next year, or refresh the vial a decade from now. No special tools — installing or replacing the Φ3 × 11 mm vial takes about a minute.

How to install the tritium vial in the Lantern Glow Fob
Unscrew the tail cap
The threaded cap opens the vial assembly. No tools needed.
Take out the vial assembly
Remove the assembly and pull out one end plug.
Insert your Φ3 × 11 mm vial
Seat the vial, reinstall the plug and screw the tail cap back on. A dab of UV glue keeps the vial secure for the long haul.
Done. Already glowing.
Green on Monday, Ice Blue by Friday. The titanium lantern is the last one you'll need.
14.2mm diameter23mm heightTi Gr.5 body3 × 11mm tritium tubeBorosilicate window~25 year glow8 colorsShock-absorbing14.2mm diameter23mm heightTi Gr.5 body3 × 11mm tritium tubeBorosilicate window~25 year glow8 colorsShock-absorbing

23 mm of lantern-shaped character

Small enough to hang on a zipper pull. Bright enough to find from across a dark room.

Lantern Glow Fob size reference
Height23 mm / 0.91"
Diameter14.2 mm / 0.56"
Body materialGrade 5 Titanium (Ti-6Al-4V)
WindowBorosilicate glass
Tritium vial capacity1 × Φ3 × 11 mm
Vial installationTail cap + end plug; UV glue for secure placement
Glow typeSelf-luminous / No charging
Glow lifespanUp to 25 years (Swiss-made tubes)
Colors8 options
In the boxTitanium Lantern Glow Fob + vial (included based on selection)

A few things worth knowing

Yes. The tritium is hermetically sealed inside borosilicate glass, inside titanium. Its low-energy beta radiation cannot penetrate the glass, let alone skin. The same light sources are used in watches, exit signs and aviation instruments. Just never open, cut or deliberately break the vial; if you ever suspect it's damaged, stop using the fob and contact us.
Think of it as a marker, not a flashlight: a clear, steady point of light you can spot across a dark room once your eyes adjust — enough to find keys, a zipper pull, a flashlight or a bag in total darkness. Green is the brightest choice; the other colors are chosen for their look and appear softer. It shows you where the item is; it won't light up a keyhole or the room around you. Photos can look brighter than the real thing because of camera exposure.
A tritium vial keeps glowing for years without any charging, with a useful glow life of up to 25 years depending on the color and where you view it. The glow softens gradually over that time rather than switching off; most owners find it practically useful for 15+ years. When you want it back at full strength, swap in a new vial and keep the same titanium body. How tritium illumination works
The Lantern is built around a shock-absorbing vial assembly that dissipates impact energy before it reaches the vial. The outer glass can still crack in a serious fall — that is the part designed to take the hit — while the tritium vial inside stays intact and keeps glowing.
The vial sits inside the titanium body and very rarely breaks. If it does, nothing dangerous happens: tritium is a gas, so it spreads out and is gone. Why the risk is low A full-size 3 x 22.5 mm vial holds about 0.04 mg of tritium gas, and the Lantern's 3 x 11 mm vial holds even less. Tritium gas is barely absorbed by the body and is mostly exhaled, so even the extreme case of inhaling that entire amount at once works out to roughly a few days of natural background radiation. In reality the gas spreads through the room in seconds and you breathe in only a tiny fraction of it, well below a single day of background. There is nothing to clean up beyond a bit of glass. Three things not to do
  • Do not crush, cut, drill or heat a vial on purpose.
  • Do not open a vial to reuse the phosphor. The gas is the useful part, and it is gone once the seal breaks.
  • Do not give loose vials to children. The glass is the hazard, not the tritium.
Yes. Tritium keychains are consumer self-luminous products, not hazardous materials, and travel in carry-on or checked luggage. If you fly a route with unusual rules, the airline can confirm in a minute. FAA packing guidance
We own the CNC machines. Design, manufacturing and shipping are all in-house, and we sell directly to you. No middlemen, no distributor markup — your money goes into the titanium, the vial and the serviceable construction, not into someone else's margin.
It depends on the variant you choose. If you select a color (Green, Ice Blue, etc.), you receive the titanium Lantern Glow Fob and a Φ3 × 11 mm tritium vial in that color. If you select a no-tritium option, you receive the titanium lantern without a vial, for customers who already own Φ3 × 11 mm vials or want to source their own. Other keys, clips and accessories shown in photos are not included.
Both the tritium vial and the outer glass are glass, so we ask every owner to do a quick check on the day the parcel arrives, before installing or using the fob. It takes a minute:
  1. Open the box on the delivery date (per the carrier's tracking record) and keep the packaging.
  2. Look over the outer glass for chips or cracks.
  3. Take the fob into a completely dark room, let your eyes adjust for 30 seconds and confirm the vial glows steadily on its own.
  4. Spotted a problem? Email us by the end of the following day with photos of the part and the original packaging, and we'll sort out a replacement.
Every vial and glass part is individually inspected before shipping, which is why this window is short: once a fob has been handled beyond this first check, test-fitted, installed or used, the glass components are no longer covered for replacement or refund. The titanium body is unaffected. Email Antdesign support
Shipping options and delivery estimates are shown at checkout. Our 30-day return policy has eligibility conditions, including original, unopened packaging; contact us before sending a return. The tritium vial and outer glass have their own arrival-check terms — see the answer above. Full details: Shipping & Returns.
Never search in the dark again.
Keys. Flashlights. Tents.

Grade 5 titanium. Tritium core. Borosilicate glass. Shock-absorbing by design.
Pick a color, hang it on the thing you always lose, and forget about batteries for years.

Pick my glow color — from $45.90
30-Day Returns · Sealed & Safe · Factory Direct Price
Tritium Vial Capacity1 (Vial included based on selection)
Tritium Tube SizeΦ3 × 11 mm
Installation MethodGlue-Free (Tritium vial is replaceable)
MaterialGrade 5 Titanium
Height23 mm / 0.91"
Diameter14.2 mm / 0.56"
Tritium GlowUp to 25 years (with Swiss-made tritium vials)
  • Quality Guaranteed by Antdesign
  • 30-Day Return Policy
  • Secure payments
  • Standard shipping: 5-8 business days
  • Express shipping: 3-5 business days

Customer Reviews

Based on 10 reviews
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(7)
30%
(3)
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k
kitty cat (United States)
not as bright as i was expecting

not as bright as i was expecting, at least compared to the photos. but it does look cool and as a test i brought it next to my geiger counter and it didnt give off any detectable levels of radiation

M
Marco (United States)
Really excited about the light

Really excited about the light, it's beautiful. But after researching I realize how fragile it is, and it's got me wondering what I'll even use it for if it breaks and gets glass everywhere.. therefore I'm giving a 4 star for now.

N
NATHAN CUNNINGHAM (United States)
Very cool half size Tritium Lantern

Very cool half size Tritium Lantern. Well machined and cool look. 3x11mm green Tritium tube in green gets about as bright as it can. I collect titanium tritium fobs & lanterns and these guys and TEC Accessories are about the only 2 places selling good fobs. Shipping from Spain was pretty quick.

K
Kirt Doughty (United States)
Cool lantern, dim light

The lantern fob looks like the picture and am satisfiedwith my purchase. However the Tritium rod even though I purchased the green is really not that bright. Cool product altogether.

A
Anonymous (United States)
Great!

Great little lantern! Not super bright but pretty good for a tritium vial! Just small enough to show whatIneed to see in total darkness.

A
Anonymous (Canada)
Great little zipper pull helps find the zipper

Great little zipper pull helps find the zipper in the dark

M
Mike P (United States)
Love It!

Well made, beautiful green glow! I’m very happy!

A
Arthur Koronis (Australia)
glow lanterns

Hi my wife loves the glow lantern on her car keys, the other one is in my EDC pack thanks regards Arthur.

R
Richard (Australia)
Perfect

Perfect item